Title :
Efficient EMS decoding for non-binary LDPC codes
Author :
Leixin Zhou ; Jin Sha ; Zhongfeng Wang
Author_Institution :
Jiangsu Provincial Key Lab. of Adv. Photonic & Electron. Mater., Nanjing Univ., Nanjing, China
Abstract :
Non-binary low-density parity-check (NB-LDPC) codes are an extension of binary LDPC codes with significantly better performance when the code length is moderate. Previously, forward-backward schemes are used to implement check node processing, which need large memory. In this paper, a novel approach is proposed for EMS NB-LDPC decoding. Compared to EMS decoding algorithm, the message memory and the average number of iterations have been reduced. Also, the overall decoder architecture is proposed.
Keywords :
decoding; iterative methods; parity check codes; check node processing; decoder architecture; extended min-sum decoding; forward-backward scheme; iteration; message memory; nonbinary LDPC code; nonbinary low-density parity-check code; Algorithm design and analysis; Capacitance-voltage characteristics; Complexity theory; Computer architecture; Decoding; Iterative decoding; EMS decoding; VLSI design; low-density parity-check (LDPC) codes; non-binary;
Conference_Titel :
SoC Design Conference (ISOCC), 2012 International
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4673-2989-7
Electronic_ISBN :
978-1-4673-2988-0
DOI :
10.1109/ISOCC.2012.6407110
